# A015872 (b-file synthesized from sequence entry)
1 10
2 20
3 26
4 58
5 122
6 1018
7 1040
8 2042
9 8186
10 32762
11 522752
12 2097146
13 8388602
14 9898496
15 16871744
16 33554426
17 1073741818
18 1630145024